Introduce GlobalSplit pass.

This pass splits globals into elements using inrange annotations on
getelementptr indices.

Differential Revision: https://reviews.llvm.org/D22295

llvm-svn: 287178

2 files changed, 5 insertions, 0 deletions

diff --git a/llvm/include/llvm/InitializePasses.h b/llvm/include/llvm/InitializePasses.h
index 62d38ec6435..9dbe95a290a 100644
--- a/llvm/include/llvm/InitializePasses.h
+++ b/llvm/include/llvm/InitializePasses.h
@@ -145,6 +145,7 @@ void initializeGVNLegacyPassPass(PassRegistry&);
 void initializeGlobalDCELegacyPassPass(PassRegistry&);
 void initializeGlobalMergePass(PassRegistry&);
 void initializeGlobalOptLegacyPassPass(PassRegistry&);
+void initializeGlobalSplitPass(PassRegistry&);
 void initializeGlobalsAAWrapperPassPass(PassRegistry&);
 void initializeGuardWideningLegacyPassPass(PassRegistry&);
 void initializeIPCPPass(PassRegistry&);
diff --git a/llvm/include/llvm/Transforms/IPO.h b/llvm/include/llvm/Transforms/IPO.h
index 0d9c1baf1b1..34cba185f9b 100644
--- a/llvm/include/llvm/Transforms/IPO.h
+++ b/llvm/include/llvm/Transforms/IPO.h
@@ -225,6 +225,10 @@ ModulePass *createCrossDSOCFIPass();
 /// metadata.
 ModulePass *createWholeProgramDevirtPass();
 
+/// This pass splits globals into pieces for the benefit of whole-program
+/// devirtualization and control-flow integrity.
+ModulePass *createGlobalSplitPass();
+
 //===----------------------------------------------------------------------===//
 // SampleProfilePass - Loads sample profile data from disk and generates
 // IR metadata to reflect the profile.